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defon
3 years ago
15

Please help! This stuff confuses me! Will BA

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
6 0
So, this is kinda similar to the other I helped you with:

<span>So r is the radius of the disk. The area is known and equal to 100Pi; so 

100Pi = Pi r2

Now for r: r = 10 

Circumference = 2 PI r = 20 Pi

I hope this helped!</span>
Brrunno [24]3 years ago
6 0
100Pi = Pi r2
 r = 10 
Circumference = 2 PI r = 20 Pi
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You are ordering pencils from Amazon for $3.50 each. Shipping costs an additional $2.99. This situation can be represented with
DENIUS [597]

Answer:

Y=total cost of purchasing the pencils

Step-by-step explanation:

Y=3.5x+2.99

Where,

Y=total cost of purchasing the pencils

3.5=price of each pencil

X= number of pencils bought

2.99= shipping cost

For instance, if you order for 5 pencils on Amazon, the total cost of purchasing it is

Y=$3.50(5)+$2.99

Y=$17.50+$2.99

Y=$20.49

3 0
3 years ago
Can someone help me with this one math problem ? picture is below
Scorpion4ik [409]
I am not sure on how to do this however here is a link with information thst will be able to help you around this subject.i hope this helps
https://www.bbc.com/bitesize/guides/z8k887h/revision/1
4 0
3 years ago
Read 2 more answers
Please help . 20 points for right answer
siniylev [52]
You would add up the percentages first, which would bring everything up to 35%. You would then take the original cost of the item, which is $30 and multiple it by the 35%. 

The equation would look like...

30 x .35 = 

This will give you $10.50, which isn't the final answer.

You would then subtract 10.50 from the $30 that was asked for at the beginning by the retailer. 

Your final answer is $19.50. :) Which isn't a bad deal if I say so myself.
3 0
2 years ago
ON A TIME LIMIT PLS HELP!!!! thank youu
Slav-nsk [51]

Answer:

RQS=110

TQS=70

Step-by-step explanation:

(12x+2)+(7x+7)=180

The two equations added together give us a straight line which is angle 180

19x + 9 = 180

19x = 171

We solve for x

x = 9

Now that we have x we plus in to each equation

RQS= (12(9)+2)

= 110

TQS=(7(9)+7)

=70

5 0
2 years ago
Ai Mi uses 7 gallons of gas to drive 151.9 miles in her car. Find the rate of change.
Fynjy0 [20]

Answer:

21.7

Step-by-step explanation:

Take 151.9/ 7 and that is your answer. All you have to do is divide.

5 0
2 years ago
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